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julsineya [31]
4 years ago
10

Brian's aunt has cats. When Brian recently visited her, he started sneezing badly and believes that it was because

Chemistry
1 answer:
kifflom [539]4 years ago
4 0

Answer:

By visiting other households with cats.

Explanation:

This will give Brian a variety of other houses and determine if it is truly cats or just alleries from other items. This is the most direct way to get Brian the answer he is looking for.

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2CO(g)+O2 (g) =2CO2(g)
Ronch [10]

Answer:

6.76 moles.

Explanation:

2CO(g)+O2 (g) =2CO2(g)

When 2 CO mols were reacted with excess O2 then 2 mols of CO2 is created.

Therefore if 6.76 moles reacted, same number of CO2 will be created.

4 0
4 years ago
Acetone used for rinsing glassware Group of answer choices
Marysya12 [62]

Answer: 2

Explanation: n/a

5 0
3 years ago
In the equation C3H8 + O2 -> CO2 + H2O, what coefficient belongs in front of the O2 group?
tankabanditka [31]

Answer:

3

Explanation:

C3H8. + 5O2. ::: 3CO2. + 4H2O

4 0
3 years ago
How many water molecules are produced when 5.2g O2 are reacted
gtnhenbr [62]

Answer:

Total number of water molecules produced after the reaction is 1.956×10^22 molecules of water.

Explanation:

By the reaction

H2+ 1/2 O2 → H2O

Moles of O2 = 5.2\32

⇒1 mole of O2 produce 1  mole of H2O

  1 mole O2 will produce 2 mole  of H2O

Therefore, 5.2\32 mole will produce {2}\times{\frac{5.2}\times{32}}

⇒ Molecules of H2O  will be

         {2}\times{\frac{5.2}{32}} = \frac{x}{{6.02}\times{10^23}}

= 1.956×10^22 moleculesof H2O.

5 0
3 years ago
KClO3 --->KCl+3/2O2 assign oxidation states to each element on each side of the equation.(reactants and produc? KClO3 --->
marusya05 [52]
K will always have an oxidation state of +1. Now O is -2 except in peroxides, this is not a peroxide, so total charge will be -6, if you subtract the +1 of K from it, it leaves -5 charge to be neutralized by Cl in KClO3, so Cl will be +5. In the product side, K will still have the same oxdiation which is +1 and Cl would have -1. O2 will have zero. <span>Now, Cl is gaining the electrons to go from +5 to -1, so it is getting reduced while O2 is losing electrons to go from -2 to zero so it is getting oxidized.</span>
6 0
4 years ago
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